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arXiv 1301.3064astro-ph.HEastro-ph.CO
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在gamma-ray blazar 3C 454.3中Mg IIλ 2800 γ发射线的类似耀斑的变化

Flare-like variability of the Mg IIλ2800Å emission line in the gamma-ray blazar 3C 454.3

J. León-Tavares, V. Chavushyan, V. Patiño-Álvarez, E. Valtaoja, T. G. Arshakian, L. C. Popovic\altaffilmark, M. Tornikoski, A. Lobanov, A. Carramiñana, L. Carra… 展开作者

J. León-Tavares, V. Chavushyan, V. Patiño-Álvarez, E. Valtaoja, T. G. Arshakian, L. C. Popovic\altaffilmark, M. Tornikoski, A. Lobanov, A. Carramiñana, L. Carrasco, A. Lähteenmäki, .

摘要:

我们报告了在2010年秋季爆发期间,在Mg IIλ 2800 3C 454.3发射线上检测到统计上显著的耀斑样事件。在监测期间(2008 - 2011年)记录到的最高水平的发射线通量与穿越射电核心的超光速喷流分量相吻合。这一发现至关重要的链接宽发射线波动的非热连续发射所产生的相对论运动的物质在喷流,因此存在的宽线区域云周围的无线电核心。如果射电核心位于距离中心黑洞几个秒差距的地方,那么我们的结果将表明,在正则宽线区设想所在的内秒差距之外,存在宽线区材料。我们简要讨论了宽发射线材料的非热连续电离的维里黑洞质量估计和伽玛射线产生机制的背景下的影响。

英文摘要:

We report the detection of a statistically significant flare-like event in the Mg IIλ2800Å emission line of 3C 454.3 during the outburst of autumn 2010. The highest levels of emission line flux recorded over the monitoring period (2008 - 2011) coincide with a superluminal jet component traversing through the radio core. This finding crucially links the broad-emission line fluctuations to the non-thermal continuum emission produced by relativistically moving material in the jet and hence to the presence of broad-line region clouds surrounding the radio core. If the radio core were located at several parsecs from the central black hole then our results would suggest the presence of broad-line region material outside the inner parsec where the canonical broad-line region is envisaged to be located. We briefly discuss the implications of broad-emission line material ionized by non-thermal continuum on the context of virial black hole mass estimates and gamma-ray production mechanisms.

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